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Table 3 Incremental value of neck circumference in predicting the risk of incident CHF and CHD death

From: The association of neck circumference with incident congestive heart failure and coronary heart disease mortality in a community-based population with or without sleep-disordered breathing

   CHF CHD death
AHI < 5 NRI 0.2017 (0.04200.3614) 0.2655 (0.0051–0.5260)
P 0.0135 0.0460
IDI 0.0055 (−0.0008–0.0118) 0.0060 (0.0001–0.0119)
P 0.0885 0.0447
AHI ≥ 5 NRI 0.0081 (−0.1233–0.1395) 0.0862 (−0.1288–0.3012)
P 0.9041 0.4331
IDI 0.0003 (−0.0005–0.0012) −0.0006 (− 0.0031–0.0019)
P 0.3785 0.6398
  1. Reclassification indices were calculated for the addition of neck circumference in the model adjusted for age, sex, and BMI
  2. AHI apnoea-hypopnea index, BMI body mass index, CHF congestive heart failure, CHD coronary heart disease, NRI net reclassification improvement, IDI integrated discrimination improvement